描述Patient Operated Selector Mechanism.jpg	English: Early 1960s picture of user operating a electric communication device in the form of a sip-and-puff typewriter controller named the Patient Operated Selector Mechanism (POSM or POSSUM), which was developed in the United Kingdom. Released into the public domain by Possum company
日期	Early 1960s
来源	The orginal Possum company (still existing, thought no long making speech aids)
作者	Possum Ltd
授权 (二次使用本文件)	本作品是自由作品，任何人都可以以任何目的使用。如果您想要使用该内容，只要您遵守本页面上提到的许可协议要求，您不需要请求授权。 维基媒体基金会已收到电子邮件，确认版权持有者同意根据本页面提到的条款发表本作品。该信件已被志愿者回应团队（VRT）成员审阅并存储于我们的授权档案中。受信任的志愿者可前往工单编号#2011080310010501查阅相关信件。 如果您对存档信件有疑问，请使用VRT通告板。 工单链接： https://ticket.wikimedia.org/otrs/index.pl?Action=AgentTicketZoom&TicketNumber=2011080310010501 查找来自同一工单的其他文件：

本作品已被作者Possum Ltd释出到公有领域。这适用于全世界。 在一些国家这可能不合法；如果是这样的话，那么： Possum Ltd无条件地授予任何人以任何目的使用本作品的权利，除非这些条件是法律规定所必需的。 Public domainPublic domainfalsefalse

本檔案是由Quadell使用CommonsHelper，從en.wikipedia轉移到維基共享資源。

• 2011-08-03 13:59 Failedwizard 308×405× (78736 bytes) Early 1960s picture of user operating a electric communication device in the form of a sip-and-puff typewriter controller named the Patient Operated Selector Mechanism (POSM or POSSUM), which was developed in the United Kingdom. Released into the public d