RTM
Well-known member
while trawling patents for something else, found these two drill patents issued to Mr Decker
US 1647396 A
Rotary tool with key pocket
US 1649060 A
Portable power-driven rotary tool with spindle latch and hand operated chuck
US 1647396 A
Rotary tool with key pocket
US 1649060 A
Portable power-driven rotary tool with spindle latch and hand operated chuck





