Home Index Site Map Up: Patents Navigation
Up: Patents
Patent 1,373,112 - Backus's Check Lock - Drawing 1
Home Page  > Glass Insulators  > Patents  > Drawing 1
Prev: Patent 1,373,112 - Backus's Check-Lock - Page 3 Next: Patent 1,373,112 - Backus's Check Lock - Drawing 2 Navigation
1,373,112: 1 of 5

Prev: Pyrex glass formula patent No. 1,304,623 - Page 1 Next: Patent No. 1,623,301 for Foval Heat-Resistant Glass - Page 1 Navigation
Patents: 7 of 8
1,373,112 / Backus / Check Lock