174:
186:
138:
67:
258:
38:
200:
for US works, such as Canada, Mainland China (not Hong Kong or Macao), Germany, Mexico, and
Switzerland. The creator and year of publication are essential information and must be provided. See
196:
This image might not be in the public domain outside of the United States; this especially applies in the countries and areas that do not apply the
78:
197:
46:
201:
86:
205:
163:
8:
162:
occurred prior to
January 1, 1929, and if not then due to lack of notice or renewal. See
158:. This applies to U.S. works where the copyright has expired, often because its first
289:
73:
257:
252:
155:
150:
37:
307:
159:
268:
225:
Click on a date/time to view the file as it appeared at that time.
61:
283:
298:
223:
85:
Commons is a freely licensed media file repository.
51:(300 × 326 pixels, file size: 87 KB, MIME type:
105:Woodruff key, from U.S Patent # 368,744 (1887)
275:Woodruff key, from U.S Patent # 368,744 (1887)
66:
14:
300:The following other wikis use this file:
173:
137:
97:
132:
285:The following page uses this file:
13:
195:
184:
172:
146:
136:
98:
44:
321:
65:
31:
21:
41:No higher resolution available.
295:
220:
26:
1:
280:
108:
7:
10:
326:
304:Usage on zh.wikipedia.org
148:This media file is in the
100:
16:
198:rule of the shorter term
166:for further explanation.
72:This is a file from the
36:
274:
202:Knowledge:Public domain
76:. Information from its
189:
178:
142:
79:description page there
188:
176:
140:
253:00:40, 22 April 2008
206:Knowledge:Copyrights
190:
179:
143:
296:Global file usage
290:Key (engineering)
278:
217:
216:
210:
208:for more details.
131:
130:
94:
93:
74:Wikimedia Commons
32:Global file usage
317:
265:
227:
211:
194:
187:
175:
139:
133:
127:
124:
121:
118:
113:
112:
90:
69:
68:
62:
56:
54:
325:
324:
320:
319:
318:
316:
315:
314:
294:
279:
271:
263:
219:
218:
209:
193:
185:
168:
125:
122:
119:
116:
111:
103:
96:
95:
84:
83:
82:is shown below.
58:
52:
50:
43:
42:
12:
11:
5:
323:
313:
312:
311:
310:
297:
293:
292:
282:
277:
276:
273:
269:
266:
260:
255:
250:
246:
245:
242:
239:
236:
233:
230:
222:
215:
214:
212:
191:
181:
180:
170:
144:
129:
128:
110:
107:
102:
99:
92:
91:
70:
60:
59:
40:
35:
34:
29:
24:
19:
9:
6:
4:
3:
2:
322:
309:
306:
305:
303:
302:
301:
291:
288:
287:
286:
272:
267:
261:
259:
256:
254:
251:
248:
247:
243:
240:
237:
234:
231:
229:
228:
226:
213:
207:
203:
199:
192:
183:
182:
177:United States
171:
169:
167:
165:
161:
157:
156:United States
153:
152:
151:public domain
145:
141:Public domain
135:
134:
120:Public domain
117:Public domain
115:
114:
106:
88:
81:
80:
75:
71:
64:
63:
57:
48:
47:Woodruff2.png
39:
33:
30:
28:
25:
23:
20:
18:
15:
299:
284:
224:
221:File history
149:
147:
104:
87:You can help
77:
45:
22:File history
160:publication
281:File usage
262:300 × 326
238:Dimensions
27:File usage
235:Thumbnail
232:Date/Time
164:this page
109:Licensing
53:image/png
264:(87 KB)
249:current
244:Comment
154:in the
101:Summary
49:
308:鍵 (機械)
270:Nagle
126:false
123:false
241:User
204:and
17:File
89:.
55:)
Text is available under the Creative Commons Attribution-ShareAlike License. Additional terms may apply.