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[blocks in formation]
[merged small][ocr errors][merged small][merged small]

Open, circular table, single deck (Batcheller)
Open, circular table, double deck (Batcheller)
Closed single sluice gate (Batcheller)
Closed single sluice gate (Stoddard)
Closed single revolving valve (Pike)
Closed double revolving valve (Pike)
Closed double sluice gate (Batcheller)
Closed double sluice gate (Stoddard)
Closed tilting end (Batcheller)......
Automatic combined receiver and dispatcher (Batcheller)

7
5

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