** XML 4.0, 4.1, 4.2, 4.3, 4.4, 4.5 (first listed is highest preference)
*** <code>//us-bibliographic-data-grant/classification-national/main-classification</code>
***examples (note: the examples here are in quotation marks because, unlike the examples of other xpaths, these sometimes have 1-2 spaces before the text. All variations of examples are shown.): ****for v4.5 utility: "172610"; ****for v4.5 reissue type: " 16250"; ****for v4.5 plant type: "PLT161; "****for v4.5 design type: " 2159", "D30158", "D 2614;
****for v4.4 utility type: " 2 85", " 2126"
****for v4.4 reissue type: "248415", "211 47", "2482821"
****for v4.4 plant type: "PLT104"
****for v4.4 design type: "0101"
****for v4.3 utility type: " 2159", " 40615", "430 1"****for v4.3 reissue type: "257341", "257328-377", "257E29076"****for v4.3 plant type: "PLT115"****for v4.3 design type: "0101", "D 1107", "D 75513", "D20 29", "D 1100-199", "D11108"
** APS
*** ?