Self-adjusting airtight door
United States Patent 2606865
Inventors:
Henri, Forsans Pierre Eugene
Publication Date:
08/12/1952
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Export Citation:
Assignee:
Henri, Forsans Pierre Eugene
Primary Class:
Other Classes:
202/269
International Classes:
C10B25/06; C10B25/16; C10B25/00
Foreign References:
| GB268313A | ||||
| DE528580C | ||||
| DE569724C | ||||
| GB430446A | ||||
| GB436992A | ||||
| FR48660A | ||||
| FR812312A | ||||
| FR918246A |