Handheld needle incinerator for a diabetes pen-type injector
Helicoidal guide for wire electrode of an EDM apparatus
High aspect ratio EDM electrode assembly
High speed electric arc saw and method of operating same
High speed electric arc saw and method of operating same
High speed electrical discharge machining by redressing high res
High-frequency power feeder circuitry and supply for electrical
High-frequency power feeder circuitry and supply method for elec
High-strength erosion electrode
High-strength erosion electrode
Holder for a carbon arc electrode
Holder for air carbon arc electrode
Holder for graphite electrodes
Holder for wire-arc discharge cutting machinery
Holding and reference system for a wire spark-erosion machine
Hole-drilling guide and method
Hollow metal object and method of its fabrication
Hyperboloid current pick-up for an electrical discharge wire cut
Hypodermic syringe needle destroying and sterlizing apparatus an