PUSH AND PULL MAN
Updated 239 days ago
- Age: 12 years
- ID: 14054174/120
Almost unconciously, I drew curves with a biro over the door frame of the printed photos...
During an appointment to see a patent agent, Harry Lamb, of Marks and Clerk in London, I showed him the push and pull photos...
PUSH PULL MAN. Registered Trademark for Symbol Pictograms of pushing and pulling doors.