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Dental Instrument.
Patent for a dental-instrument holder which suitable handle allows to hold a clamping rod firmly while reaching out the difficult cavities and surfaces during the teeth cleaning.
Date:
September 1, 1903
Creator:
Harrell, Hardy B.
System:
The Portal to Texas History
Trap
Patent for a trap. This design is for a live trap. Illustration included.
Date:
September 1, 1908
Creator:
Pierce, William Z.
System:
The Portal to Texas History
Sad-Iron-Facing Machine.
Patent for a sad iron facing machine, which grinds and polishes iron with a lateral movement rather than a straight one that speeds up the process and prevents gumming of the machine.
Date:
September 14, 1909
Creator:
Dorsey, Royal H.
System:
The Portal to Texas History