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Books by Robert D. Porter

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2 books found
How to Make a Pivot Polisher and Micro Drilling Attachment for the Small Lathe
How to Make a Pivot Polisher and Micro Drilling Attachment …
By: Robert D. Porter
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How to Make a Form Tool Grinding Attachment for the Watchmakers' Lathe: For Making Gear Cutters and The Like
How to Make a Form Tool Grinding Attachment for the Watchma…
By: Robert D. Porter
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