4. Geometrical instruments

David J. Ball

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Calcination apparatus

Heating – Work chamber having heating means – Having means by which work is progressed or moved mechanically
Patent

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Calcination apparatus

Chemistry of inorganic compounds – Treating mixture to obtain metal containing compound – Alkaline earth metal
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Electrical connector and filter circuit

Wave transmission lines and networks – Coupling networks – Frequency domain filters utilizing only lumped parameters
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Electrical connector with insert member retaining means

Geometrical instruments
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Enhanced detent guide track with dog-leg

Geometrical instruments
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Profile ID: LFUS-PAI-P-251159

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