| More topics under "A42C - Manufacturing or trimming hats or other head coverings" (1,737) |
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| A42C 1 - Manufacturing hats (331) |
| A42C 2 - Manufacturing helmets by processes not otherwise provided for (329) |
| A42C 3 - Appliances for hat-making not provided for in group , e.g. for making wire forms for hat-frames; Apparatus for changing the form or size of finished hats (29) |
| A42C 5 - Fittings or trimmings for hats, e.g. hat-bands (1,044) |
| A42C 99 - Subject matter not provided for in other groups of this subclass (4) |