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- pin disk mill
- demodulator of frequency shift signal
- marsh mallow chocolate
- rotary press
- circular auto-control heating oven
- modular single point annunciator
- round can end curler
- hardbake
- wool-mohair-silk mixed fabric
- pig leather for making gloves
- boring hose
- Brick model
- collar
- knitted fishing net
- neocupferron
- eupolyphaga sinensis
- travelling microscope
- picture oscillating transformer
- wing float
- coaling crane