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193:Category:1930s disestablishments in Pennsylvania
415:20th-century establishments in Pennsylvania
430:1930s establishments in the United States
420:Establishments in Pennsylvania by decade
354:This list may not reflect recent changes
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333:1939 establishments in Pennsylvania
320:1938 establishments in Pennsylvania
307:1937 establishments in Pennsylvania
294:1936 establishments in Pennsylvania
281:1935 establishments in Pennsylvania
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242:1932 establishments in Pennsylvania
229:1931 establishments in Pennsylvania
216:1930 establishments in Pennsylvania
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396:Oneida Number Three Tunnel
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391:Oneida Number One Tunnel
425:1930s in Pennsylvania
379:Green Mountain Tunnel
26:United States portal
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367:Catawissa Tunnel
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53:Pennsylvania
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409:Categories
48:category
337:(37 P)
324:(35 P)
311:(27 P)
298:(24 P)
285:(19 P)
272:(27 P)
259:(24 P)
246:(33 P)
233:(38 P)
220:(33 P)
120:1980s
115:1970s
110:1960s
105:1950s
100:1940s
95:1930s
90:1920s
85:1910s
80:1900s
75:1890s
70:1880s
59:1930s
46:This
183:25th
178:24th
173:23rd
168:22nd
163:21st
157:20th
151:19th
146:18th
141:17th
136:16th
131:15th
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