H - Electricity – 04 – M
Inventor
H - Electricity
04
M
Inventor
Country: United States Of America
Call transfer method and circuitry
Key telephone off-premises line circuit
Method of, and apparatus for, applying protective coatings...
Telephone signaling circuit
Improvement on shovel handles
Method of, and apparatus for, applying protective coatings...
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Profile ID: LFCA-PAI-P-210892