Mark's Locksmith
| A-H | 1003M, 1069LB | |
| ABLE | VR2 | |
| Abus | padlocks | |
| Abus | spare tire lock | 1069LB, 1069N |
| Abus padlock | 1000F, 1000P, SLA15 | |
| Ace | padlock | 1141GE |
| Ace | tubular key | 1137B |
| Ace | C1041L | |
| Acme | padlock | 1092, 1092N |
| Acorn | 1123, A54B, O1122, O1122A | |
| Acrolock | night latch | 999 |
| Acro Welch | 999 | |
| Action | padlock | 1000, X1014F, S1096LN, 1092, O1007LN, N1069B, 1171 |
| Action bike lock | Korea | X1014F |
| Adams | aircraft | O1014J, A1001ABM |
| Adams Rite | glass door | 1145, 999, 1054WB |
| Ademco | burglar alarm | 1098M, K1122D, 1518 |
| ADM | padlock | 1307A, 1145 |
| Advance Affiliate | 1120D, 1092 | |
| Aero Commander | 999 | |
| Aero Lock | 999 | |
| Age | Sears desk lock | O1122, O1122A |
| Age | sliding door | 1001PZ and See Ilco #60 |
| Age lock | Japan | O1122, O1122A |
| Aimsco | 1099M, O1122AR | |
| Airplanes | L1054B | |
| Airstream | RV | 1125A, H1054B |
| Alba | padlock | P1098C |
| Alba | Mexico gate lock | A1, A3 |
| Alco | 1132 | |
| Aldora | 999 | |
| Alford Manufacturing | 999 | |
| All #1 | desk | O1122, 1120D |
| All Steel | desks, cabinets | 1069N, O1122, 1000F, O1122A, 1041T |
| Allen | cash register | O1122 |
| Allen Organ | 1000V | |
| Allied | 1014 | |
| Allouette | O1122, O1122A | |
| Alma | desk | O1122, 1069N, O1122A |
| Almer | 1054FN | |
| Almet | AE1, 1145A, 1179 | |
| Alpenhauser | 1007RMB | |
| Alpha | file cabinet | 1307A, 997E |
| Alpha | freezer | Y12 |
| Alpha | padlocks | 997E |
| Alpha | alarm/wheel lock | X6, X7 |
| Alpha/Tec | cash registers | See Ilco #60 |
| Amana | freezer | 1069N, O1122A, 1069FL |
| Amarlite | deadbolt | 999 |
| American Deluxe | 1003M | |
| American Devices | padlocks, etc. | 1000V, 100eM, N1054WB, 1069LB, R1064E, 997E |
| American Lock | padlocks | 1041C, 1045, A1041U, 1041B |
| American Metals | 999, Y11, Y12 | |
| American Van Products | cam lock | O1122 |
| Amerock | AK22W, 1179, 1022B, R1064E | |
| AMF | bike lock | 101AM, 1000 |
| AMF | bowling locker | AP1, AP2, AP3, AP4 |
| AMMA | vending | 1611 |
| Ampex | video tape machine | 1003M |
| Anaconda Aluminum | 999, 999B | |
| Anderson | French door | WR5 |
| Anderson Hickey | file cabinets | HAW1 to HAW4 |
| Anderson Window | N1054WB, O1122, O1122B | |
| APO | IN3 | |
| Apollo | Sears knobset | 1307A |
| Arax | M1 | |
| Archer | switch lock | 1098M, O1122AR |
| Arco-Rifkin | bank bags | 1130, 1130R, 1131, 1131R |
| Arctic Cat | snowmobile | 1040C, R1040C, 1041Y, O1122, O1122A |
| A.R.E. | tonneau cover | 322861 Strattec |
| Ariens | 1127ES | |
| Aris | Y11 | |
| Aristocrat | RV | Same as Bargman |
| Armstrong | cable lock | OKB197 |
| Arrow | padlock | AR1, AR4 |
| Art Metal | office furniture | 1069N, R1000V, Y11, Y12 |
| Asco | file cabinets | O1122A, 997JA |
| Astro | pickup topper | 1560 |
| Atari | arcade games | Y11 |
| Atco | padlock | 1054WB, CO54 |
| Atkinson & Long | trunk | T36, T44, T95, T96, T97 |
| Atlas | padlock | 1170B |
| Atlas Ansonia | IN2, K2, L1 | |
| Aurora | furniture | CG1 |
| Austin Hardware | Y11 | |
| Auth Electric Co. | 1069N | |
| Auto Burglar Alarm | 1098M, O1122AR | |
| Auto City Products | O1122, O1122A, L1122B |