Removable door lock for hotels and the like

Closure fasteners – Portable securer plate or bar

Patent

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Details

292297, E05C 1918

Patent

active

053602455

ABSTRACT:
An improved security device comprising a plate member insertable between a door and a door jamb and having a first portion projectable into a latch recess in said jamb and having a recess located adjacent said door when said first portion is located in said recess, and a second member releasably engageable with said recess of said plate member and with the doorknob of said door to prevent unauthorized opening of said door.

REFERENCES:
patent: 692083 (1902-01-01), Spear
patent: 827624 (1906-07-01), Foster
patent: 866548 (1907-09-01), Wilkinson
patent: 892462 (1908-07-01), Stewart
patent: 2019217 (1935-10-01), Forte
patent: 2532586 (1950-12-01), Wickwire
patent: 2786705 (1957-03-01), Stalmer
patent: 3421787 (1969-01-01), Hoffman et al.
patent: 4386797 (1983-06-01), Duran, Sr.
patent: 4471981 (1984-09-01), Wright
patent: 4575140 (1986-03-01), Dargis

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