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Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
Inventor:
Lawrence; Tom M.
Address:
Janesville, WI
No. of patents:
1
Patents:












Patent Number Title Of Patent Date Issued
4116514 Security hinge September 26, 1978
A security hinge is disclosed which includes a pair of leaves, having respectively, at least a pair of spaced end knuckles and at least one immediate knuckle disposed therebetween. Each knuckle includes a central axial bore, the bores being aligned co-axially. A pair of pins are prov










 
 
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