Title:
Cylinder type lock with plural tumbler sets
Document Type and Number:
United States Patent 2618957
Inventors:
Margrethe, Tonnessen Johanne BE.
Lars, Tonnessen
Johan, Tonnessen
Tonnessen Jr., Adolph
Marthin, Tonnessen
Gerda, Tonnessen
Lars, Tonnessen
Johan, Tonnessen
Tonnessen Jr., Adolph
Marthin, Tonnessen
Gerda, Tonnessen
Plaque It!
Sponsored by: Flash of Genius |
Publication Date:
11/25/1952
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Referenced by:
Export Citation:
Assignee:
Arne, Gilje
Primary Class:
Other Classes:
70/378, 70/491
International Classes:
E05B27/00
Foreign References:
| CH176577A |